The company has come up with some new products that will 'run circles around' the competition. [=that will be much better than the competition; that will easily beat the competition]
We've been trying to decide how to improve the system, but we just keep 'going around in circles'. [=we are not making any progress toward making a decision]
Now that she's back on the stage, her career has 'come/gone full circle'. [=her career began on the stage, and now she has returned to it]
(..) A good soldier never leaves a man behind. Okay, everybody, come on. Everybody settle down. Now, kids. Everybody... You sit in a circle. No, Andy. Andy, you sit in the middle there. Good. And... Which present are you gonna open first? -Mine! -There they are. (..)1995 Toy Story